Figure 5
The multi-panel scatter plot consists of five panels arranged in two rows with one centered panel below. Each panel is drawn on a coordinate plane with the horizontal axis labeled “Age” ranging from 4 to 14 in increments of 1 unit, and the vertical axis labeled “Theme Density” with panel-specific ranges. Each panel includes scattered data points and a regression line, where Themes 1, 3, 4, and 5 use a red dashed line, and Theme 2 uses a solid red line. Panel 1 titled “Theme (1): Source Segregation Current Practices and Benefits”: The vertical axis ranges from 0 to 12 in increments of 2 units. A red dashed regression line slopes downward from left to right. The dashed line starts at (3, 6) and ends at (15, 5). The correlation is labeled “r equals negative 0.21 (ns)”. The scattered points include (3, 7), (5, 0), (8, 13), (10, 8), and (15, 2). Panel 2 titled “Theme (2): Barriers and Enablers”: The vertical axis ranges from 5 to 25 in increments of 5 units. The solid regression line slopes downward from (3, 16) to (15, 7). The correlation is labeled “r equals negative 0.51 (p less than 0.05)”. Sample points include (3, 7), (5, 25), (8, 22), (10, 4), and (15, 9). Panel 3 titled “Theme (3): Policy and Regulations”: The vertical axis ranges from 0 to 7 in increments of 1 unit. The dashed regression line slopes downward from (3, 4.5) to (15, 3). The correlation is labeled “r equals negative 0.30 (ns)”. Sample points include (3, 7), (6, 1), (8, 7), (10, 3), and (15, 1). Panel 4 titled “Theme (4): Stakeholder Roles and Collaboration”: The vertical axis ranges from 0 to 15 in increments of 5 units. The dashed regression line slopes downward from (3, 5.5) to (15, 2). The correlation is labeled “r equals negative 0.25 (ns)”. Sample points include (3, 1), (5, 13), (8, 18), (10, 6), and (15, 1). Panel 5 titled “Theme (5): Circular Economy Integration and Future Opportunities”: The vertical axis ranges from 0 to 3 in increments of 0.5 unit. The dashed regression line slopes downward from (3, 1.2) to (15, 0.8). The correlation is labeled “r equals negative 0.21 (ns)”. Sample points include (3, 1), (6, 2), (8, 3), (10, 0), and (15, 1). Note: All numerical data values are approximated.Correlation analysis between participants years of experience and emphasis on key thematic areas of C&D waste source segregation in Saudi Arabia